Packing pad



H. J. BLOCK! May 10, 1927.

PACKING PAD Filed Feb, 11. 1924 INVEN TOR.

AT RNEYS Heafad Surface Patented May 10, 1927.

orrsn sfrarss 1,627,82? PATENT OFFICE.

HERBERT BLOCKI, 0F SHEBOYGAN, WISCONSIN.

PACKING ran.

Application filed February 11, 1924. Serial No. 691,961.

wall of paper or the like comprising a flat tened hoop encircling theexcelsior and open at its ends. As is well known. excelsior has atendency to crumble and where such pads asthose above described are usedthe packing rooms are filled with dust, litter, and debris en'ianatingfrom the open ends of the pad. To construct the wrapping sheets in thform of closed envelopes to be sea led at the ends, whereby tocompletely enclose t excelsior in each pad, would be an unwarrantedexpense in view of the price at which the market demands these articles.

It is the object of this invention to pro vide means for preventing theescape of litter and scrap material from the ends of such pads withoutgoing to the expense of providing sealing flaps for the ends of the padwrapper. More particularly stated. it. is my object to provide a methodfor eliminating the nuisance above referred to by a bulk treatment ofentire bundles of pads so that no manipulation of individual pads willbe necessary to accomplish the desired 'mrpoF-e.

By the new and improved method herein disclosed, it is my purpose toprovide bun.- dles of pads which will be more easily handled than hasheretofore been possible and individual pads which although preleraliilytreat-ed in the bundle, will have their reaped tive ends sealed againstthe loss of dustand litter.

In the drawings:

Figure l is a plan view of a bundle. of pads embodying this invention.

Figure 2 is a .side elevation of the bundle containedin Figure 1.

F igure 3 is an enlarged detail view in perspective of a fragment of: asingle pad embodying this invention.

Figure 4c is a diagrammatic illustration of a bundle of pads beingdipped in a vat of melted coating material.

Like parts are identified by the same reference characters throughoutthe several views.

The bundle as illustrated in Figures 1. 2, and 4 comprises a number ofindividual pads 10 which are bound together in superposed relation bymeans of the cords 11. Each of: such pads includes a paper wrapper 12which is in the form of a flattened tube and encloses a distributed massor sheet 18 of excelsior or similar material. As is clearly shown inFigure 3, the wrapper 12; is open at its ends and exposes the filling;of the pad. Through the open ends of" such pads the objectionable litterand dust above referred to have heretofore made their escape.

For the purpose of avoiding such litter.

I provide a pan or vat M Which is heated in any desired manner as byhemp; placed upon a heated surface 15, such the top of a coal, oil, orelectric stove. In this vat I place a. quantity of some substance whichis solid at normal atmospheric conditions but can be liquefied by theapplication of heat or otherwise. I prefer that this substance whenliquefied shall be adhesive and I find that waxes and paratlins ofvarious commercial types are particularly satisfac- "tory for thepurposes of this invention. By

way of exemplifying such substances I will hereinafterrefer only topratlin which is preferred for the practice of this invention.

I Sufiicient paraflin will be placed in pan 14: so that when theparaffin is melted it will fillthe pan to the desired depth. For a padof ordinary size a depth of one inch of par-aflin will be adequate,although more or less may be used as desired. It is my purpose toaccomplish the desired result of sealing the ends of the several padswithout unnecessarily wasting the iaraliin indicated. at 16 in pan let.

\Vhen the paralfin is liquefied, bundles of pads 10 have theirrespective ends dipped momentarily into the body of parailin indiated at16. They need be allowed to remain with their ends dipped inparatlinonly for the time necessary for the paratiin to pene trate the pad tothe desired depth, and. if the filler I3 is excelsior, penetration willoccur almost instantly. \Vhen one end of the bundle has been dipped thebundle is suspended momentarily above the vat to permit any surplus ofparaffin to drain therefrom and is then inverted and the other end isdipped.

lVhen the dipping operation is completed the bundles and indivi dualpads will. appear as represented in Figures 1 to 3. The ends of thepaper wrapping 12 of each pad will be slightly discolored as at 17, dueto the impregnation or coating of the paper with paraflin. The excelsiordisclosed; at the end of the pad at 18 will also be discolored, and eachindividual fiber of the mass will be coated and will be connected tothose fibers with which it contacts by a thin film of the coatingmaterial. There is no attempt made to provide a solid sheet of paraliinacross the end of the pad and none is necessary. T his thin film ofparaffin, by means, of which the individual fibers of the excelsior arecaused to adhere each to the other, effectively seals the end of the padwithout destroying its resilience, In practice, very lit tle matterfalls from the end of a pad which has been so treated, and the featureswhich have been referred to above and have heretofore been regarded asvery objectionable in pads of this character, are practicallyeliminated.

In wrapping a piece of furniture the operator will take a bundle of padsand will first cut the cords ll which bind the individual pads togetherin the bundle. He will wrap the individual pads about the diti'erentportions ofthe furniture which are to be protected, and in so doing, miist move, with the bundle, about the piece of furniture upon which he isworking. I have found that where pads are treated in the bundle by themethod previously disclosed. herein, their wrappers 12 become sli 'htlyadherent so that even though the cords 11 are removed there isnevertheless a tendency for the bundle to retain its form. This resultfacilitates the work of the user of the pads, since in moving about thepiece of furniture upon which he is working he can. more readily movethe bundle from place to place than would be possible if the individualpads were loose and separated. The pads have little body in themselves,and consecpiently, are hard to handle unless, retained together in somemanner. in. the practice ofthe present invention the pads adhere justsufficiently to preserve the form of the bundle when the striilgs 11 arecut, but each individual pad can be removed from the bundle by a veryslight pull thereon. This is obviously true in view of the fact that thepads are adherent only adjacent their respective ends.

I have found that pads impregnated or coated at their ends with paratlinafter the disclosure herein are particularly valuable for packing smallmachinery and the like, in which the dust and litter from the old styleof pad hasheretofore caused much annoyance. 'lhese pads, however, may beused wherever such pads have heretofore been employed, since theparaflining operation does not materially destroy the resilience of theindividual pad and is in every way, an improven'ient. I Wish furthermoretomake it clear that I do not desire to limit my invention to the use ofany particular filling 18, nor to the use of any particular wrappingmaterial 12,1101 to any particular coating material 16. It will beobvious that many dili'erent materials can be used for each of theseseveral functions and, even though there be no necessity for dipping thepad to keep its contents from escaping from its ends, the dipping.operation will neverthelessprove useful to. retain together the severalpads of a bundle after the manner heretofore described.

Furthermore, Iv recognize that the. fibers comprising the excelsior matmay be treated by spraying instead. of dipping to render them mutuallyadhesive.

1 claim as my invention:

1. As a new article of manufacture, a bundle of packing pads of thecharacter described, each of said pads having open ends and beingdisposed with its open ends in alignment with other pads of the bundle,and each of suchends of said pads being adherent to the ends ofadjacentpads, whereby said bundle will retain its form without securing cords.

A bundle of pads of the character described, said bundle comprising asuperimposed series of individual pads having open ended wrappers andfibrous fillers, with the. open ends of the wrappers of the several padsin alignment, the ends of said pads at one end of the bundle beingthinly coated with a waxy material, whereby the individual pads aremutually adherent and have their ends substantially sealed against, theloss of the filling material.

HERBERT J. BLOCKI.

